docs: def get_url(self, filename, query_para=None, **url_args):
          """
          Return <a href="filename" title="filename"> tag
          You should pass title and text to url_args, if not pass, then using filename
          """
          from uliweb.core.html import Tag
          
          title = url_args.pop('title', filename)
          text = url_args.pop('text', title)
          query_para = query_para or {}
          return str(Tag('a', title, href=self.get_href(filename, **query_para), **url_args))